CPT code 23330: Foreign-body removal, shoulder, subcutaneous2026 Medicare rate & RVUs in Montana

Removal of a foreign object from subcutaneous tissue at the shoulder, selected when the operative report documents a superficial rather than deep location.

CMS RVU26DEffective Oct 1, 2026One payment locality35 Medicare services in 2024

In Montana, Medicare pays $328.30 for 23330 in the office and $166.31 when it’s performed in a hospital or facility.

$328.30Office (non-facility)
$166.31Hospital or facility
−0.0%vs the national office rate ($328.33)

Check a contract rate as a % of Medicare · 23330 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

We’ll open 23330 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Montana
  2. What 23330 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 23330 covers

This service covers surgical removal of a foreign object from the subcutaneous tissue of the shoulder. An orthopedic surgeon or another qualified surgeon may perform it when a retained object, such as a fragment beneath the skin, requires removal through an incision. The shoulder location and superficial tissue depth distinguish this service from removal of a deeper object.

Choose this code when the operative report supports a subcutaneous shoulder location; a deep object points to the corresponding deep-removal code. Document the object’s location and depth, the removal performed, and the treated side. Medicare assigns a 10-day global period, so related postoperative visits during that period are included. When multiple procedures occur in one session, the highest-valued procedure is paid in full and other procedures are subject to a 50% reduction. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment requires documented medical necessity; co-surgeons and team surgery are not permitted.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

How Montana compares for 23330

Across 109 of 109 payment localities, the office rate for 23330 runs from $286.15 in Arkansas to $440.83 in San Benito County, CA. Montana pays $328.30. The RVUs are the same everywhere; the geographic indexes change the dollars.

23330 in Montana vs other payment areas
  1. Montana · this page$328.30
  2. Los Angeles, CA · California$372.71+$44.41
  3. Washington, DC area · District of Columbia$378.24+$49.94
  4. Miami, FL · Florida$359.14+$30.84
  5. Chicago, IL · Illinois$347.33+$19.03
  6. Manhattan, NY · New York$381.13+$52.83
  7. Alaska · Alaska$369.68+$41.38

Other areas in Montana first, then benchmark localities. Bars start at $0.

Every other payment area

23330 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$290.89$149.14
ArkansasArkansas$286.15$147.00
ArizonaArizona$318.56$161.59
Bakersfield, CACalifornia$348.59$171.04
Chico, CACalifornia$347.49$169.94
El Centro, CACalifornia$347.55$170.01
Fresno, CACalifornia$347.49$169.94
Hanford, CACalifornia$347.49$169.94

23330 rates by state

Office rate range in each state. Select a state to see its payment localities.

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

$286.15

$394.16

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
23330 office rate range by state
State / territoryOffice rate rangeLocalities
AK$369.681
AL$290.891
AR$286.151
AZ$318.561
CA$347.49–$440.8329
CO$342.351
CT$351.871
DC$378.241
DE$324.251
FL$323.91–$359.143
GA$303.55–$335.252
GU$357.391
HI$357.391
IA$298.751
ID$301.041
IL$313.83–$347.334
IN$302.981
KS$297.401
KY$299.091
LA$298.65–$315.212
MA$340.03–$378.512
MD$330.89–$378.243
ME$303.03–$321.122
MI$308.03–$328.632
MN$326.271
MO$293.04–$316.203
MS$289.651
MT$328.301
NC$306.541
ND$320.391
NE$300.531
NH$337.041
NJ$355.39–$373.642
NM$310.001
NV$326.351
NY$311.70–$391.595
OH$306.411
OK$298.261
OR$323.35–$354.002
PA$306.84–$342.402
PR$330.921
RI$336.421
SC$307.091
SD$319.461
TN$299.111
TX$304.60–$341.628
UT$311.781
VA$320.10–$378.242
VI$330.921
VT$319.201
WA$339.36–$386.452
WI$308.451
WV$300.921
WY$324.861

See 23330 in every payment locality

How the 23330 rate is calculated

Each of 23330’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

How the rate is built · 23330

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.85

1.85 RVUs× 1.000 GPCI

Practice expense7.58

7.58 RVUs× 1.000 GPCI

Malpractice0.40

0.40 RVUs× 1.000 GPCI

Adjusted RVUs

9.8300

Conversion factor

$33.4009

Medicare rate

$328.33

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact Montana inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

2,188

Code
23330
Physician work
1.85
Practice expense
7.58
Malpractice
0.40

GPCI2026.csv

71

Locality
Montana
Physician work
1.000
Practice expense
1.000
Malpractice
0.998
Office calculation for 23330 in Montana
ComponentRVULocality factorAdjusted
Physician work1.85× 1.0001.8500
Practice expense7.58× 1.0007.5800
Malpractice0.40× 0.9980.3992
Total RVUs9.8292
Conversion factor× 33.4009

Office rate, Montana$328.30

Office: (1.85 × 1 + 7.58 × 1 + 0.4 × 0.998) × $33.4009 = $328.30

Facility: (1.85 × 1 + 2.73 × 1 + 0.4 × 0.998) × $33.4009 = $166.31

Open 23330 in the RVU calculator

Payment rules and modifiers for 23330

23330 has a 10-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 23330

Foreign-body removal, shoulder, subcutaneous

RuleCMS valueWhat it means
Global period010Minor procedure: the day of the procedure plus 10 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.80/0.10Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 23330

Foreign-body removal, shoulder, subcutaneous

10-day global period ends

Oct 11, 2026

Covers Oct 1, 2026 through Oct 11, 2026 (11 days).

Visit on Oct 31, 2026

After the global period ends: visits and procedures are billed normally.

SurgeryVisit
Sep 28, 2026Oct 14, 2026

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

23330 without 50 · national office

$328.33

Foreign-body removal, shoulder, subcutaneous

23330-50 · Bilateral: 150%

$492.50

Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).

When to use modifier 50

How 23330 has changed in Montana

23330 · Office / nonfacility

$328.30

Effective 2026-10-01

The base rate is $36.49 higher than on 2025-10-01, moving from $291.81 to $328.30 (12.5%).

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release
  1. January 1, 2026

    RVU26A

    $291.81changed to$328.30

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.90 changed to 1.85
    • Practice expense RVU 6.74 changed to 7.58
    • Malpractice RVU 0.39 changed to 0.40
    • Malpractice GPCI 0.978 changed to 0.998

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $302.63changed to$291.81

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 6.81 changed to 6.74

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $297.69changed to$302.63

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $307.76changed to$297.69

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 6.82 changed to 6.81
    • Malpractice RVU 0.37 changed to 0.39
  5. January 1, 2023

    RVU23A

    $313.57changed to$307.76

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 6.78 changed to 6.82
    • Malpractice RVU 0.39 changed to 0.37
    • Malpractice GPCI 0.977 changed to 0.978

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $313.38changed to$313.57

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 6.71 changed to 6.78
    • Malpractice RVU 0.38 changed to 0.39

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $303.35changed to$313.38

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 6.01 changed to 6.71
    • Malpractice GPCI 1.304 changed to 0.977

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $298.26changed to$303.35

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 5.74 changed to 6.01
    • Malpractice RVU 0.39 changed to 0.38
    • Malpractice GPCI 1.631 changed to 1.304

    Held through RVU20B, RVU20C, RVU20D.

  9. July 1, 2019

    RVU19C

    $296.50changed to$298.26

    • Malpractice RVU 0.36 changed to 0.39

    Held through RVU19D.

  10. January 1, 2019

    RVU19A

    $290.51changed to$296.50

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 5.55 changed to 5.74
    • Malpractice RVU 0.38 changed to 0.36

    Held through RVU19B.

  11. January 1, 2018

    RVU18AR1

    $258.25changed to$290.51

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 4.81 changed to 5.55
    • Malpractice RVU 0.34 changed to 0.38
    • Malpractice GPCI 1.429 changed to 1.631

    Held through RVU18B, RVU18C, RVU18D.

  12. January 1, 2017

    RVU17A

    $245.98changed to$258.25

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 4.59 changed to 4.81
    • Malpractice RVU 0.31 changed to 0.34
    • Malpractice GPCI 1.226 changed to 1.429

    Held through RVU17B, RVU17C, RVU17D.

  13. January 1, 2016

    RVU16A

    $250.47changed to$245.98

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 4.58 changed to 4.59
    • Malpractice RVU 0.40 changed to 0.31

    Held through RVU16B, RVU16C, RVU16D.

  14. July 1, 2015

    RVU15C

    $249.22changed to$250.47

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  15. January 1, 2015

    RVU15A

    $245.55changed to$249.22

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 4.57 changed to 4.58
    • Malpractice RVU 0.33 changed to 0.40
    • Malpractice GPCI 1.165 changed to 1.226

    Held through RVU15B.

  16. January 1, 2014

    RVU14A

    $281.58changed to$245.55

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 5.99 changed to 4.57
    • Malpractice RVU 0.35 changed to 0.33
    • Malpractice GPCI 1.103 changed to 1.165

    Held through RVU14B, RVU14C, RVU14D.

  17. January 1, 2013

    RVU13AR

    Earliest loaded release: $281.58

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$328.30$166.31RVU26D
2026-07-01$328.30$166.31RVU26C
2026-04-01$328.30$166.31RVU26B
2026-01-01$328.30$166.31RVU26A
2025-10-01$291.81$166.63RVU25D
2025-07-01$291.81$166.63RVU25C
2025-04-01$291.81$166.63RVU25B
2025-01-01$291.81$166.63RVU25A
2024-10-01$302.63$169.81RVU24D
2024-07-01$302.63$169.81RVU24C
2024-04-01$302.63$169.81RVU24B
2024-03-09$302.63$169.81RVU24AR
2024-01-01$297.69$167.04RVU24A
2023-10-01$307.76$170.18RVU23D
2023-07-01$307.76$170.18RVU23C
2023-04-01$307.76$170.18RVU23B
2023-01-01$307.76$170.18RVU23A
2022-10-01$313.57$170.99RVU22D
2022-07-01$313.57$170.99RVU22C
2022-04-01$313.57$170.99RVU22B
2022-01-01$313.57$170.99RVU22A
2021-10-01$313.38$171.72RVU21D
2021-07-01$313.38$171.72RVU21C
2021-04-01$313.38$171.72RVU21B
2021-01-01$313.38$171.72RVU21A
2020-10-01$303.35$176.68RVU20D
2020-07-01$303.35$176.68RVU20C
2020-04-01$303.35$176.68RVU20B
2020-01-01$303.35$176.68RVU20A
2019-10-01$298.26$181.50RVU19D
2019-07-01$298.26$181.50RVU19C
2019-04-01$296.50$179.73RVU19B
2019-01-01$296.50$179.73RVU19A
2018-10-01$290.51$181.07RVU18D
2018-07-01$290.51$181.07RVU18C
2018-04-01$290.51$181.07RVU18B
2018-01-01$290.51$181.07RVU18AR1
2017-10-01$258.25$164.22RVU17D
2017-07-01$258.25$164.22RVU17C
2017-04-01$258.25$164.22RVU17B
2017-01-01$258.25$164.22RVU17A
2016-10-01$245.98$157.18RVU16D
2016-07-01$245.98$157.18RVU16C
2016-04-01$245.98$157.18RVU16B
2016-01-01$245.98$157.18RVU16A
2015-10-01$250.47$161.36RVU15D
2015-07-01$250.47$161.36RVU15C
2015-04-01$249.22$160.55RVU15B
2015-01-01$249.22$160.55RVU15A
2014-10-01$245.55$155.99RVU14D
2014-07-01$245.55$155.99RVU14C
2014-04-01$245.55$155.99RVU14B
2014-01-01$245.55$155.99RVU14A
2013-10-01$281.58$170.32RVU13D
2013-07-01$281.58$170.32RVU13C
2013-04-01$281.58$170.32RVU13B
2013-01-01$281.58$170.32RVU13AR

Price 23330 for an earlier date of service

Where the Montana rate applies

Montana is a Medicare payment area, not a city. Our Census mapping connects it to 497 cities and communities in Montana. Some span more than one payment area; confirm with the service ZIP.

  • Absarokee
  • Acton
  • Alberton
  • Alder
  • Alzada
  • Amsterdam
  • Anaconda-Deer Lodge County
  • Antelope

Browse all communities in Montana

23330 billing questions

How do I distinguish this code from 23333?

Use this code when the foreign object is documented in subcutaneous shoulder tissue. Code 23333 is for a deep shoulder foreign object.

Does the 10-day global period include postoperative visits?

Yes. Related postoperative visits during the 10-day global period are included in the procedure payment.

How is bilateral removal reported?

For bilateral procedures, report modifier 50; CMS pays the procedure at 150%.

Can an assistant surgeon be paid?

Assistant-at-surgery payment is available only when the record documents medical necessity. Co-surgeons and team surgery are not permitted.

What documentation supports selecting this code?

Document the shoulder site, the foreign object's subcutaneous depth, the side treated, and the removal performed. A deep location supports a different code in the shoulder foreign-body removal family.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Show the CMS file lines behind this rate
RVUs for 23330PPRRVU2026_Oct_nonQPP.csv, line 2,188 (RVU26D)
Geographic factors for MontanaGPCI2026.csv, line 71 (RVU26D)

Open CMS sourceHow we calculate rates

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